Effects of general soil fertilization with sodium selenate in Finland on the selenium content of meat and fish

1990 ◽  
Vol 38 (3) ◽  
pp. 695-698 ◽  
Author(s):  
Paivi Ekholm ◽  
Maija Ylinen ◽  
Pekka Koivistoinen ◽  
Pertti Varo
Keyword(s):  
Sodium Selenate ◽  
Selenium Content ◽  
Soil Fertilization

scholarly journals Agrotechnical Biofortification as a Method to Increase Selenium Content in Spring Wheat

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 541
Author(s):  
Aleksandra Radawiec ◽  
Wiesław Szulc ◽  
Beata Rutkowska
Keyword(s):  
Spring Wheat ◽  
Foliar Application ◽  
Stem Elongation ◽  
Agricultural Practices ◽  
Triticum Aestivum L ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Human Diet ◽  
Soil Fertilization ◽  
Soil Application

Selenium (Se) is a micronutrient that is insufficiently present in the human diet. Increasing its content in food through appropriately matched agricultural practices may contribute to reducing Se deficit in humans. The study covered the effect of grain, soil, as well as grain and soil fertilization with selenium combined with foliar application at different stages of spring wheat (Triticum aestivum L.) development. The fertilization involved the application of sodium selenate. Fertilization with selenium had no significant effect on the grain yield. Grain application, soil application, and grain and soil application combined with foliar application at particular development stages of the plant significantly contributed to an increase in selenium content in grain. The study showed that the accumulation of selenium in spring wheat depends on the type of fertilization and term of its application. The best method of introducing selenium into the plant is grain and soil fertilization combined with foliar application at the stage of tillering and stem elongation (G + S+F1-2) for which the highest selenium content was obtained (0.696 mg·kg−1 Se). The applied biofortification methods contributed to the increase in selenium in the grain of spring wheat.

scholarly journals Selenium Biofortification of Wheat as a Strategy to Improve Human Nutrition

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 144
Author(s):  
Aleksandra Radawiec ◽  
Wiesław Szulc ◽  
Beata Rutkowska
Keyword(s):  
Spring Wheat ◽  
Foliar Application ◽  
Stem Elongation ◽  
Sodium Selenate ◽  
Control Group ◽  
Selenium Content ◽  
Wheat Grain ◽  
Elongation Phase ◽  
Fertilisation Treatment ◽  
Foliar Fertilisation

This paper analyses the effects of soil and foliar fertilization with sodium selenate (VI) on the selenium content in spring wheat grain. The research was carried out at the Departmental Experimental Station of the Institute of Agriculture WULS in Skierniewice in 2018 and 2019. The dose of selenium used was 5.00 g Se·ha−1 in various development stages of spring wheat. The results showed that selenium fertilisation did not affect the size of the grain yield, but both soil and foliar fertilisation significantly increased the content of selenium in wheat grain compared to the control group. The highest Se content was obtained with the method of soil fertilisation combined with the foliar application with a total dose of 10.00 g·ha-1 Se in the stem elongation phase (S + F2), and in the tillering and stem elongation phase (S + F1 + F2), which resulted in the values of 0.615 and 0.719 mg·kg−1 Se in grain, respectively. On this basis, it was concluded that the best time to carry out foliar fertilisation treatment is in the stem elongation phase (BBCH 30–39). The results show that the greatest increase in selenium content in the grain is achieved with soil and foliar fertilisation combined.

scholarly journals Impact of sodium-selenate on the growth of radish (Raphanus sativus L.) seedlings in vitro

2005 ◽  
Vol 11 (2) ◽  
Author(s):  
É. Domokos-Szabolcsy ◽  
I. J. Holb ◽  
J. Prokisch ◽  
B. Kovács ◽  
Zs. Veres ◽  
...  
Keyword(s):  
Raphanus Sativus ◽  
Vascular Plants ◽  
Higher Plants ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Physiological Properties ◽  
Raphanus Sativus L ◽  
Total Antioxidant ◽  
Do So

Selenium (Se) is an essential trace element for animals, microorganisms and some other Eukaryotes. It has become increasingly evident that Se plays a significant role in reducing the incidence of lung, colorectal and prostate cancer in humans. Although it is well known that some species among higher plants are able to accumulate selenium in their tissues, but others are not able to do so, and there is evidence that selenium is needed for the growth of algae, meanwhile the question of essentiality of Se in vascular plants is unresolved. We aimed to study the in vitro growing and to characterise some physiological properties in radish (Raphanus sativus L.) seedlings treated with 0 to 200 mg/1 sodium-selenate. The results showed that lower (2 mg/1) concentration sodium-selenate increased the biomass as well as the total antioxidant capacity of seedlings. The seedling's selenium content showed linear correlation with the sodium-selenate content of the medium.

scholarly journals Increasing of selenium content and qualitative parameters in tomato (Lycopersicon esculentum Mill.) after its foliar application

10.5219/1097 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 351-358 ◽  
Author(s):  
Alena Andrejiová ◽  
Alžbeta Hegedűsová ◽  
Samuel Adamec ◽  
Ondrej Hegedűs ◽  
Ivana Mezeyová
Keyword(s):  
Vitamin C ◽  
Foliar Application ◽  
Botanical Garden ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Total Carotenoids ◽  
Total Polyphenol ◽  
Tomato Fruits ◽  
Negative Effect ◽  
Positive Effect

The effect of genotype and selenium foliar biofortification in the form of an aqueous solution of sodium selenate on the content of total carotenoids, vitamin C, total polyphenols and selenium content in the tomato fruits was studied.  Field experiment was held in the Botanical garden of the Slovak University of Agriculture in 2016. Seven determinant varieties of tomato in the two variants were observed. The results of experiments show that treatment of plants with the dose of Se concentration (150 g Se.ha-1) at the flowering stage significantly increased the total Se content in the in tomato fruits. Foliar application of selenium had a positive effect on the increase of total polyphenol. The influence of Se biofortification on the content of vitamin C and carotenoids was not detected. Selenium foliar fertilization in dosage 150 g.ha-1 is suitable way of tomato fruits enriching in polyphenols, without negative effect on other antioxidants content.

scholarly journals Effect of foliar sodium selenite biofortification on cauliflower yield, nutritional value and antioxidant status

2020 ◽  
pp. 63-68
Author(s):  
M. S. Antoshkina ◽  
N. A. Golubkina ◽  
L. L. Bondareva
Keyword(s):  
Nutritional Value ◽  
Sugar Content ◽  
Sodium Selenate ◽  
Agricultural Crops ◽  
Selenium Status ◽  
Selenium Content ◽  
Ascorbic Acid Concentration ◽  
Consumption Level ◽  
Selenium Accumulation ◽  
Different Doses

Relevance. Biofortification of agricultural crops with selenium is considered to be the most promising method for the human selenium status optimization.Methods. Effect of foliar biofortification of cauliflower, Polyarnaya Zvezda cv, with sodium selenate of different concentrations on yield, selenium content and biochemical characteristics of plants were investigated.Results. Enrichment of plants with selenium increased yield by 1.23-1.31 times, sugar content – 1.6 times, ascorbic acid concentration – 1.52-2 times. On the contrary, the treatment did not affect pholyphenol content and antioxidant activity of ethanolic extracts of plants. Selenium accumulation levels decreased according to inflorescences > leaves > roots. Sodium selenate solution at 75 mg/L concentration increased mass of cauliflower leaves 1.9 times and roots – 1.5 times. Consumption of 100 g of cauliflower fortified with 50 mg/L sodium selenate solution provided 100% of the daily adequate selenium consumption level. Utilization of higher sodium selenate concentrations ensured 127% and 418% of the daily adequate consumption level in case of 75 mg/L and 100 mg/L concentrations respectively. Taking into account insignificant differences between sugar content and antioxidants in cauliflower inflorescences fortified with different doses of selenium the most suitable concentration to be used was 50 mg/L.

scholarly journals The use of biofortification for production of selenium enriched garden pea

10.5219/1359 ◽  
2020 ◽  
Vol 14 ◽  
pp. 437-442
Author(s):  
Silvia Jakabová ◽  
Jozef Čurlej ◽  
Martina Fikselová ◽  
Ľuboš Harangozo ◽  
Dagmar Kozelová ◽  
...  
Keyword(s):  
Plant Material ◽  
Total Content ◽  
Sodium Selenate ◽  
Individual Plant ◽  
Selenium Content ◽  
Garden Pea ◽  
Transfer Factors ◽  
Control Transfer ◽  
Pea Seeds ◽  
Higher Doses

Biofortification of crops with selenium is one of the possible manners on how to increase selenium intake by humans. The effect of selenium fertilization in relation to selenium enrichment of pea and following the phytotoxicity symptoms in garden pea plants was studied. Pot experiments were established with a control variant without selenium addition and four variants where selenium was applied as sodium selenate into the soil in four different concentrations (1 - 6 mg Se.kg-1) before seeding. Garden pea was grown in pots for 60 days and then plant material was dried and submitted to analysis. The total content of selenium was determined by the ZET-AAS method in the roots, above-ground parts of the plant (stems, leaves, extracted pods), and in seeds of a pea. Dean-Dixon´s test and paired t-test (α = 0.05) were used for statistical evaluation of the results. Transfer factors were calculated as a ratio between selenium content (mg.kg-1) in individual plant material and soil. Transfer indexes were calculated as a ratio between selenium content (mg.kg-1) in seeds and roots. The results showed that with the increasing addition of the Se to the soil, its contents in all parts of the plant proportionally increased. The content of the Se increased in the roots 43 to 173-fold, in the above-ground parts 79 to 372-fold, and in the seeds Se was accumulated 130 to 415 times more compared to control. Transfer factors and transport indexes were expressed. Transfer factors for pea varied from 11.05 to 19.25 in the case of Se transfer to the whole pea biomass. In the case of the Se transfer from soil to pea seeds, the highest transfer showed variant with addition 1 mg Se.kg-1 and the transfer factor gradually decreased with increasing addition of Se. Based on the amount of biomass produced, the experiments statistically confirmed the phytotoxicity of higher doses (4 and 6 mg Se.kg-1) of selenium to plants. The highest transport index values are shown variants with the Se addition 1 and 2 mg Se.kg-1 (2.03 and 1.77, respectively). In these variants, Se was used the most efficiently. Our results showed that the best biofortification results were obtained in experimental variants with the lower selenium additions (1 and 2 mg Se.kg-1).

scholarly journals Effect of Selenium Biofortification and Beneficial Microorganism Inoculation on Yield, Quality and Antioxidant Properties of Shallot Bulbs

Plants ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 102 ◽  
Author(s):  
Golubkina ◽  
Zamana ◽  
Seredin ◽  
Poluboyarinov ◽  
Sokolov ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Antioxidant Properties ◽  
Environmentally Friendly ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Total Sugars ◽  
Yield Quality ◽  
Amf Inoculation

Plant biofortification with selenium in interaction with the application of an arbuscular mycorrhizal fungi (AMF)-based formulate,with the goal of enhancing Se bioavailability, is beneficial for the development of the environmentally friendly production of functional food with a high content of this microelement. Research was carried out in order to assess the effects of an AMF-based formulate and a non-inoculated control in factorial combination with two selenium treatments with an organic (selenocystine) or inorganic form (sodium selenate) and a non-treated control on the yield, quality, antioxidant properties, and elemental composition of shallot (Allium cepa L. Aggregatum group). Selenocystine showed the best effect on the growth and yield of mycorrhized plants, whereas sodium selenate was the most effective on the non-inoculated plants. The soluble solids, total sugars, monosaccharides, titratable acidity, and proteins attained higher values upon AMF inoculation. Sodium selenate resulted in higher soluble solids, total sugars and monosaccharide content, and titratable acidity than the non-treated control, and it also resulted in higher monosaccharides when compared to selenocystine; the latter showed higher protein content than the control. Calcium, Na, S, and Cl bulb concentrations were higher in the plants inoculated with the beneficial microorganisms. Calcium and sodium concentrations were higher in the bulbs of plants treated with both the selenium forms than in the control. Selenocystine-treated plants showed enhanced accumulation of sulfur and chlorine compared to the untreated plants. The AMF inoculation increased the bulb selenium content by 530%, and the Se biofortification with selenocystine and sodium selenate increased this value by 36% and 21%, respectively, compared to control plants. The AMF-based formulate led to increases in ascorbic acid and antioxidant activity when compared to the non-inoculated control. The bulb ascorbic acid was increased by fortification with both selenium forms when compared to the non-treated control. The results of our investigation showed that both AMF and selenium application represent environmentally friendly strategies to enhance the overall yield and quality performances of shallot bulbs, as well as their selenium content.

scholarly journals Biofortification of Sodium Selenate Improves Dietary Mineral Contents and Antioxidant Capacity of Culinary Herb Microgreens

2021 ◽  
Vol 12 ◽  
Author(s):  
Rachel G. Newman ◽  
Youyoun Moon ◽  
Carl E. Sams ◽  
Janet C. Tou ◽  
Nicole L. Waterland
Keyword(s):  
Antioxidant Capacity ◽  
Total Phenol ◽  
Sodium Selenate ◽  
Total Phenol Content ◽  
Selenium Content ◽  
Phenol Content ◽  
Mineral Contents ◽  
Copper Zinc ◽  
Iron Manganese ◽  
Culinary Herb

Selenium biofortification of plants has been suggested as a method of enhancing dietary selenium intake to prevent deficiency and chronic disease in humans, while avoiding toxic levels of intake. Popular herbs such as basil (Ocimum basilicum L.), cilantro (Coriandrum sativum L.), and scallions (Allium fistulosum L.) present an opportunity for biofortification as these plants are used for added flavors to meals and are available as microgreens, young plants with increasing popularity in the consumer marketplace. In this study, basil, cilantro, and scallion microgreens were biofortified with sodium selenate under hydroponic conditions at various selenium concentrations to investigate the effects on yield, selenium content, other mineral contents (i.e., sodium, potassium, calcium, magnesium, phosphorus, copper, zinc, iron, manganese, sulfur, and boron), total phenol content, and antioxidant capacity [oxygen radical absorbance capacity (ORAC)]. The results showed that the selenium content increased significantly at all concentrations, with scallions demonstrating the largest increase. The effects on other minerals varied among herb species. Antioxidant capacity and total phenol content increased in all herbs at the highest selenium treatments, but basil and scallions demonstrated a decreased crop yield. Overall, these biofortified culinary herb microgreens are an ideal functional food for enhancing selenium, other dietary minerals, and antioxidants to benefit human health.

scholarly journals Selenium supplementation by addition of sodium selenate with silage additive

2014 ◽  
Vol 23 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Arja Seppälä ◽  
Yolanda Madrid Albarran ◽  
Harri Miettinen ◽  
Maria Palomo Siguero ◽  
Elina Juutinen ◽  
...  
Keyword(s):  
Formic Acid ◽  
Dose Level ◽  
Dry Matter ◽  
Selenium Supplementation ◽  
The Other ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Meadow Fescue ◽  
Grass Silage

An ensiling experiment was conducted to assess the possibility for increasing the selenium content in grass silage by using a selenium-enriched silage additive, and to determine possible changes in the form of selenium during ensiling. Prewilted and precision-chopped silage was prepared from the second cut of timothy – meadow fescue sward in southern Finland. The additive treatments (6 g kg-1) were: control without additive, water containing 50 mg sodium selenate kg-1, and formic acid-based additive containing 10, 50 or 500 mg sodium selenate kg-1. The selenium content of the control silage was low (0.069 mg kg-1 dry matter) whereas the selenium content of the other silages was in line with the dose level of selenium delivered in the additive. The added selenate was detected only as selenate in the silages. Addition of sodium selenate to silage additive provided a controlled way to add selenium to the diet of forage-fed animals.

scholarly journals Selenium uptake and Se compounds in Se-treated buckwheat

2016 ◽  
Vol 75 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Aleksandra Golob ◽  
Mateja Germ ◽  
Ivan Kreft ◽  
Igor Zelnik ◽  
Urška Kristan ◽  
...  
Keyword(s):  
Dominant Species ◽  
Field Experiments ◽  
Photochemical Efficiency ◽  
Plant Part ◽  
Tartary Buckwheat ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Selenium Uptake ◽  
Potential Source ◽  
Positive Effect

AbstractIn field experiments, tartary buckwheat and hybrid buckwheat were foliarly sprayed with an aqueous solution of sodium selenate (20 mg Se L-1). In treated plants, the selenium content was significantly higher than in controls, irrespective of the plant part and taxon of buckwheat. The highest average Se concentrations in hybrid and tartary buckwheat were found in seeds. The main Se species found in seeds was Semethionine. Selenium-sprayed plants had higher photochemical efficiency of photosystem II in both taxa and higher electron transport system activity in hybrid buckwheat, suggesting a positive effect of Se on physiological characteristics. Because of the concentration of Se in both buckwheat taxa and selenomethionine as the dominant species of Se, Se-enriched buckwheat is a potential source of dietary Se for animals and humans.

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